LU PHYSICS 101 QUIZ 5 2021
PHYS 101-D16 LUO_ Quiz 5.
All questions answered correctly.
• Question 1
2 out of 2 points
The specific heat capacity of water is about twice the specific heat capacity of ice. From this information, the amount of heat required to boil 1 kg of water is the amount o...
LU PHYSICS 101 QUIZ 5 2021
PHYS 101-D16 LUO_ Quiz 5.
Course 202120 Spring 2021 PHYS 101-D16 LUO
Test Quiz 5
• Question 1
2 out of 2 points
The specific heat capacity of water is about twice the specific heat
capacity of ice. From this information, the amount of heat required to boil
1 kg of water is the amount of heat required to melt 1 kg of ice.
Selected
a.
Answer:
unrelated
to
• Question
2 2 out of 2 points
“Firewalkers” step on the hot ashes and coals from a wood fire without
getting their feet burned. How might this be possible?
Selected
b.
Answer:
The ashes are poor conductors
of heat.
• Question
3 2 out of 2 points
A key is placed in a hot oven and warmed to 100°C. As a result
Selected
c.
Answer:
the key
becomes longer.
• Question
4 2 out of 2 points
A device that makes use of a bimetallic strip is
Selected
d.
Answer:
all of
the
• Question above.
5 2 out of 2 points
An example of a heat mover is
, Selected d.
Answer:
all of
the
• Question above.
6
2 out of 2 points
The Eiffel tower in Paris is made primarily of iron, whose coefficient of linear expansion is
about 10 × 10−6/°C. On a cold day when the temperature is –10°C the Eiffel tower is 300
meters tall. Its height on a hot day when the temperature is 40°C is
Selected
a.
Answer:
300.15
m.
• Question
7 2 out of 2 points
A bimetallic strip is usable as a thermometer because of
Selected
d.
Answer:
thermal
expansion.
• Question
8 2 out of 2 points
The temperature of a gas can be increased by
Selected
d.
Answer:
all of
the
• Question above.
9 2 out of 2 points
Natural processes tend to increase the of thermodynamic
systems.
Selected
a.
Answer:
entrop
y
• Question 10
2 out of 2 points
Air at a temperature of 32° F has a relative humidity of 60%. If the
temperature of the same air rises to 40° F, the relative humidity
Selected
b.
Answer:
decreas
es.
• Question 11
2 out of 2 points
specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-
°C
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